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SunOS 5.5 Devices nee(7D)

NAME nee − Novell NE3200 Ethernet device Driver

SYNOPSIS #include <sys/stropts.h>

#include <sys/ethernet.h>

#include <sys/dlpi.h>

AVAILABILITY x86

DESCRIPTION The nee Ethernet driver is a multi-threaded, loadable, clonable, STREAMS hardware

driver supporting the connectionless Data Link Provider Interface, dlpi(7P), over Novell

NE3200 controllers. Multiple EtherLink 16 controllers installed within the system are

supported by the driver. The nee driver provides basic support for the NE3200

hardware. Functions include chip initialization, frame transmit and receive, multicast

and “promiscuous” support, and error recovery and reporting.

APPLICATION

PROGRAMMING

INTERFACE

The cloning, character-special device /dev/nee is used to access all NE3200 devices

installed within the system.

nee and DLPI The nee driver is a “style 2” Data Link Service provider. All M_PROTO and M_PCPROTO

type messages are interpreted as DLPI primitives. An explicit DL_ATTACH_REQ message

by the user is required to associate the opened stream with a particular device (ppa). The

ppa ID is interpreted as an unsignedlong integer and indicates the corresponding device

instance (unit) number. The unit numbers are assigned sequentially to each board found.

The search order is determined by the order deﬁned in the /kernel/drv/nee.conf ﬁle. An

error (DL_ERROR_ACK) is returned by the driver if the ppa ﬁeld value does not

correspond to a valid device instance number for this system. The device is initialized on

ﬁrst attach and de-initialized (stopped) on last detach.

The values returned by the driver in theDL_INFO_ACK primitive in response to the

DL_INFO_REQ from the user are as follows:

The maximum SDU is 1500 (ETHERMTU).

The minimum SDU is 0. The driver will pad to the mandatory 60-octet

minimum packet size.

The dlsap address length is 8.

The MAC type isDL_ETHER.

The sap length value is −2, meaning the physical address component is fol-

lowed immediately by a 2-byte sap component within the DLSAP address.

The service mode is DL_CLDLS.

No optional quality of service (QOS) support is included at present, so the

QOS ﬁelds are 0.

The provider style isDL_STYLE2.

The version isDL_VERSION_2.

The broadcast address value is Ethernet/IEEE broadcast address

modiﬁed 10 Feb 1995 7D-225

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